Nut-wrench.



No. 768,501; PATENTBD AUG. 23, 1904.

' J. W. WINKELRIBD.

NUT WRENCH. APPLICATION FILED DI-0.30, 1903.

N0 MODEL.

llllllllll UNITED ASTATES Patented August 23, 1904.

PATENT OFFICE.

NUT-WRENCHl SPECIFICATION forming part of Letters Patent No. 768,501,dated August 23, 1904.

Application filed December 30, 1903. Serial No. 187,137. (No.model.)` I

T0 a/ZZ whom, it may concern:

Be it known that I, JOSEPH W; WINKEL- RIED,a citizen of the Republic ofSwitzerland, residing at Phoenix, British Columbia, Canada, haveinvented new and useful Improvements in N ut-Wrenches, of which thefollowing is a specification.

My invention relates to new and useful improvements in nut-wrenches; andits object is to provide a durable and compact device of this characterthe working parts of which are completely inclosed and protected fromdust, dirt, &c.

A further object is to provide a sliding jaw having means operated bythe handle of the tool for locking the jaw in adjusted position.

With the above and other objects in view the invention consists of afixed jaw havinga toothed shank extending therefrom. A slid` ing jaw ismounted uponthis shank and has a toothed stem projecting from it ,andadapted to engage the teeth on the shank. .A revo,- luble tubular handleis mounted upon the stem and inoloses the shank, and this handle is soshaped that when it is rotated in one direction the stem and shank willbe clamped together. Means are provided for automatically supporting thestem and shank when the handle is thrown in the opposite-direction.

The invention also consists in the further novel construction andcombination 'of' parts hereinafter more fully described and claimed,gV

and illustrated in the accompanying drawings, showing the preferred formof my invention, and in whichh Figure 1 is a side elevation of myimproved wrench. Fig. 2 is .a longitudinal section therethrough. Fig. 3is a plan view of the sliding jaw and its stem. Fig. 4 is a section online 4 4, Fig. 2; and Fig. 5 is a section on line 5 5', Fig. 2.

Referring to the figures by numerals of reference, 1 is a fixed jawhaving a shank 2 extending therefrom, and one face of the shank hastransversely-extending teeth 3 thereon.

A longitudinally-extending groove 4 is formed in the shank at itsfreeend, and secured in this groove is a spring-strip 5, having a lateralextension 6' at its end. A jaw 7 is slidably mounted on thershank 2 andhas a stem 8 projecting therefrom and extending longitudinally of thetoothed face of shank 2. This engage the teeth 3, and recesses 10 areformed in the toothed face of the stem and contain bow-springs 11, whichare adapted to bear against shank 2 and hold the shank and the stemnormally spaced apart.` A projection 12 is formed at one end of stem 8and is secured within a disk 13, on which is revolubly mounted thecylindrical end of a tube 14. This tube incloses the stem and shank, andits inner end is'oval in form, as shown in Fig. 4. The cylindrical endof the tube is internally enlarged to form a shoulder 15, which isadapted to limit the movement of the shank in one direction, suchmovement being stopped by the extension 6 of strip 5 contacting with theshoulder 15. When it is desired to'adjust the jaws 1 and 7 toward eachother, the'tubular diameter of the oval end thereof to extendlongitudinally of the jaw 7. The stern 8 is then automatically movedaway from the shank 2 by the springs 11, and the proper adjustment ofthe jaws can be effected. When it is desired to lock the jaws inadjusted relation to each other, the tubular handle 14 is 'rotated so asto cause the short diameter of the oval end thereof to extendlongitudinally of the jaw 7. This rotation of the handle will, as isobvious, swing the stem against the shank and'. compress the springs 11,thereby locking the stems and` shank securely together.

It will be seen that the wrench is verysimple in construction and thatal1 the working parts thereof are protected from dust, Sac., which wouldtend to retard or prevent the operation of the tool. The parts can bereadily detached by removing the nut 16, arranged lon extension 12, anddetaching the disk 13. The outer face of the tube 14 is l' preferablymilled or otherwise roughened, so as to enable it to be readily rotatedby hand. Y

l In the foregoing description I haveshown the preferred form of myinvention; butI do not limit myself-thereto, as I am aware that stem hasteeth 9 on its inner face adapted to handle 14 isgrotated so as to causethelongest modifications may be made therein without departing from thespirit or sacrificing any of the advantages thereof, and I thereforereserve the right to make such changes as t'airl5T fall within the scopeof m v invention.

Having thus described the invention, what is claimed as new is-- l. In awrench, the combination with a fixed jaw having a toothed shank; of asliding jaw upon the shank, a toothed stem thereto, and a tubular handlerevolubly mounted upon the stem and shank and adapted to clamp themtogether, said handlel having an oval clamping portion.

2. In awrench, the combination with a fixed jaw having a toothed shank;of a sliding jaw upon the shank, a toothed extension thereto, a tubularhandle revolubly mounted upon and secured to the'extension, said handleinclosing the shank and adapted to clamp it to the eX- tension, andmeans for automatically spacing apart the extension and shank.

3. In a wrench, the combination with a liXed jaw having a toothed shank;of asliding jaw, a toothed extension thereto, a tubular handle ofvarying contour secured to and revolubly mounted upon the extension,said handle inclosing the shank, and means for automatically spacingapart the shank and extension.

L In a wrench, the combination with a fixed j'aw having a toothed shank;or' a sliding jaw to the shank, a toothed extension thereto adapted toengage the shank, a disk secured to the extension, a tubular handlerevolubly mounted upon the disk and having' an oval end adapted to bearupon and inclose the shank and stem, and means vfor automaticallyspacing apart the stem and shank.

In a wrench, the combination with a ixed jaw havinga toothed shank; oi asliding jaw, a toothed extension thereto, a disk secured to theextension, a tubular handle revolublv mounted upon the disk andinclesing the shank and extension, said handle having` an eval clampingportion, and means for limiting` the movement of the shank within thehandle.

6. In a wrench, the combination with a lixed jaw having a toothed shank;of a sliding` jaw upon the shank, a toothed extension thereto, spacingdevices connected to the extension, a tubular handle revolubly mountedon the extension and having a clamping end inclosing` the extension andshank, and means for limiting the movement otl the shank within thehandle.

7. In a wrench, the combination with a iixed jaw having a toothed shank;oi a sliding jaw upon the shank, a toothed extension thereto havingrecesses, spacing-prongs within the recesses and bearing` on the shank,a disk secured to the extension, a tubular handle revolubly mounted uponthe disk and having a clamping end inclosing the shank and exten sion,and a spring-holding shank secured to and adapted to be limited in itsmovement by the handle.

In testimonyv whereof I aiix my signature in presence or' two witnesses.

JOSEPH WIN KILRI El). VitneSSeS:

HUGH Fonsr'rn, R. N. RIBLuT.

